Ash-sifter.



T. P. BOLGER.

ASH SIFTER.

APPLICATION FILED FEB. 8, 1908. 949,6 1 5. v Patented Feb. 15, 1910.

2 SHEETS-SHEET 1.

T. P. BOLGER.

ASH SIPTER.

APPLICATION FILED FEB. s, 1908.

Patented Feb.15,1910,

2 SHEETS-SHEET 2.

51 1/0214 tom UNTTED SATS @FFTQE.

THOMAS P. BOLGER, OF GLOUCESTER, MASSACHUSETTS.

ASH-SIFTER.

Application filed February 8,

To all whom it may concern:

Be it known that I, THOMAS P. BOLGER, a citizen of the United States,residing at Gloucester, in the county of Essex and State ofMassachusetts, have invented a new and useful Improvement inAsh-Sifters, of which the following is a specification.

This invention relates to an ash Sifter, and the object of the inventionis a device of this kind having a rotary sifter open at each end andinclosed in a casing, one end of said casing being closed by agravity-drop door which is automatically opened by pressure of coalagainst it, thereby making the sifter as dust tight as a device of thiskind can be made and at the same time leave a conveniently arrangeddischarge opening discharging into a common coal scuttle.

The invention consists of the novel features of construction hereinafterdescribed, pointed out in the claim and shown in the accompanyingdrawings in which Figure 1 is a side elevation of my device, parts of acoal scuttle and ash receiver being broken away. Fig. 4 is alongitudinal vertical section through the device as shown in Fig. 1.Fig. 3 is a plan view of the device mounted in position as shown inFig. 1. Fig. 4 is a section on the line H of Fig. 2. Fig. 5 is asectional view on the line 5-5 of Fig. 2 looking toward the dischargeend of the device.

In these drawings 1 represents a suitable casing which is provided witha flanged cylindrical base 2 adapted to fit over a barrel or metal ashcan 3. At one end of the casing 1 it is carried upwardly forming ahopper l provided with a hinged top 5. A flanged sliding cover 6 closesthe top of the body portion of the casing 1 and is held in place by aturn button 7 carried by an end 8. Extending longitudinally entirelythrough the casing 1 is a rotatable shaft 9 provided at the hopper endof the casing with a handle 10. At the opposite end of the casing, whichend extends beyond the circular base 2, is provided a downwardly openingdischarge outlet 11, the bottom of the casing adjacent said dischargeoutletbeing downwardly inclined as shown at 12. Hinged within the casingis a gravity-drop door 13 the lower free edge of which rests upon theSpecification of Letters Patent.

1908. Serial No. 414,945.

inclined portion 12 of the casing bottom and said door is verticallyslotted as shown at 14t to permit passage of the shaft 9 and also toallow for the swinging movement of said door.

Within the hopper 1 is arranged a fixed screen 15, said screen having adownwardly inclined bottom spaced from an inclined bottom portion 1which bottom portion is directly below the hopper 4. The inner endportion of the screen 15 is semi-cylindrical and is carried by a fixedmetal ring 16.

The shaft 9 is provided with arms 17 arranged in sets and one set ofarms carries a collar 18 arranged concentrically with respect to thering 16 and turning loosely upon the ring. The other set of arms 17 arearranged adjacent the gravity-drop door 13 and support a collar 19 andupon the collars 18 and 19 is arranged a rotatable screen 20 the rearend of said screen being of smaller diameter than the front end.

A hook 21 is carried by the end 8 upon which may be hung the bail of acoal scuttle or other receptacle.

The operation of the device is as follows :The ashes to be sifted arepoured into the hopper/1 and the top 5 closes. The handle 10 is thenturned and the screen 20 turns with the shaft 9. The fine ashes whichfall through the fixed screen 15 upon the inclined bottom 1 will slideat once into the barrel or can 3. The remainder of the coal and asheswill slide into the rotating screen 20 and the ashes will be siftedtherein from the coal and will fall through into the ash receiver andthe coal will be carried on to the end of the screen 20 and will fallupon the inclined bottom portion 12. The weight of these coals will openthe door 13 and permit them to fall through the outlet 11 into thescuttle 22, the door again closing by gravity when the weight against itis removed. Should strings, rags or other articles be in the coal andashes and interfere with the sifting operation, the top 6 can be slidelf and the interfering articles may be removed. The screen 20 can bereadily lifted out for cleaning should it become clogged up, by drawingout the shaft 9, which will slide through its bearings.

Having thus fully described my invention,

What I claim as new and desire to secure by Letters Patent, is:

An ash sifter comprising a casing having a hopper at one end and adischarge opening at the other, a fixed screen in alinement with thehopper, a ring carried by the inner end of the fixed screen, a rotatableshaft extending longitudinally through the casing and through said ring,arms carried by the shaft, collars carried by said arms, one 10 of said.collars turning loosely upon the ring and a screen carried by saidcollars.

THOMAS P. BOLGER. Witnesses JOHN NAGLE, M. FRANCIS BUCKLEY.

